Setup The Sound
Microsoft's audio system restricts the audio function to one output at a time; therefore,
when using the USB HDMI multi-display adapter only one output will receive audio.
The following explains how to set-up and change the default sound output from the
display device connected with the USB 3.0 HDMI Display Adapter.
1.
Go to "Control Panel> Hardware and Sound" and select "Changes system sounds"
2.
The speaker options , for single and Multi- USB 3.0 HDMI Display Adapters, are
shown below.
Single USB 3.0 HDMI Display Adapter
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Multi-USB 3.0 HDMI Display Adapter